PLEASE HELP WILL GIVE IF CORRECT IM TAKING AN MATH EXAM!!

Compare the cost of the bike trips from the two companies shown. for both the cost in a linear function of the number of days which statements is true

Evaluate the expression for the given value of the variable. | ? 4 b ? 8 | + ? ? ? 1 ? b 2 ? ? + 2 b 3 -4b-8+-1-b2+2b3 ; b = ? 2 b=-2

Acyclist bike x distance at 10 miles per hour .and returns over the same path at 8 miles per hour. what is the cyclist average rate for the round trip in miles per hour ?